19845098061 has 16 divisors (see below), whose sum is σ = 26863510464. Its totient is φ = 13029382784.

The previous prime is 19845098059. The next prime is 19845098069. The reversal of 19845098061 is 16089054891.

It is a cyclic number.

It is not a de Polignac number, because 19845098061 - 2¹ = 19845098059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19845097995 and 19845098013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19845098069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46776 + ... + 204641.

It is an arithmetic number, because the mean of its divisors is an integer number (1678969404).

Almost surely, 2^19845098061 is an apocalyptic number.

It is an amenable number.

19845098061 is a deficient number, since it is larger than the sum of its proper divisors (7018412403).

19845098061 is a wasteful number, since it uses less digits than its factorization.

19845098061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251820.

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 19845098061 in words is "nineteen billion, eight hundred forty-five million, ninety-eight thousand, sixty-one".